lsmd_selinux(8)

📦
version 20250627+git412.dbf877ab7 · 7 versions
, in opensuse-leap 16.0

💅 lsmd_selinux(8) — the SELinux glow-up for lsmd

okay so bestie, welcome to the lsmd_selinux page from the SELinux Policy lsmd collection ✨ this is the manual page (lsmd_selinux(8)) that spills all the tea about how SELinux handles the lsmd processes 🎀

🌸 NAME 🌸

lsmd_selinux — the Security Enhanced Linux Policy for the lsmd processes, periodt 💅

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the lsmd processes via flexible mandatory access control. no cap, that's the whole vibe 🔥

The lsmd processes execute with the lsmd_t SELinux type. Wanna check if you've got these processes running? Just run the ps command with the -Z qualifier 🫶

For example:

ps -eZ | grep lsmd_t

🚪 ENTRYPOINTS 🚪

The lsmd_t SELinux type can be entered via the lsmd_exec_t file type. that's the doorway, bestie 🚪✨

The default entrypoint paths for the lsmd_t domain are literally the following:

/usr/bin/lsmd

👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. so every process gets its own little main character energy 💅

You can see the context of a process using the -Z option to ps 👀

Policy governs the access confined processes have to files. The SELinux lsmd policy is very flexible, allowing users to setup their lsmd processes in as secure a method as possible 🔒

The following process types are defined for lsmd:

  • lsmd_t
  • lsmd_plugin_t
Note: semanage permissive -a lsmd_t can be used to make the process type lsmd_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it's chill but it's still snitching 🙈

🎀 BOOLEANS 🎀

SELinux policy is customizable based on least access required. the lsmd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run lsmd with the tightest access possible 🔐

  • daemons_dontaudit_scheduling — if you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on this boolean. Enabled by default.
setsebool -P daemons_dontaudit_scheduling 1
  • fips_mode — if you want to allow all domains to execute in fips_mode, you must turn on this boolean. Enabled by default.
setsebool -P fips_mode 1
  • nis_enabled — if you want to allow system to run with NIS, you must turn on this boolean. Disabled by default.
setsebool -P nis_enabled 1

🦋 PORT TYPES 🦋

SELinux defines port types to represent TCP and UDP ports 🌐

You can see the types associated with a port by using the following command:

semanage port -l

Policy governs the access confined processes have to these ports. The SELinux lsmd policy is very flexible, allowing users to setup their lsmd processes in as secure a method as possible 🔒

The following port types are defined for lsmd:

  • lsm_plugin_port_t

Default Defined Ports:

tcp 18700

🗂️ MANAGED FILES 🗂️

The SELinux process type lsmd_t can manage files labeled with the following file types. the paths listed are the default paths for these file types 👇 note that the process's UID still needs to have DAC permissions, so like, no shortcuts bestie 😌

  • cluster_conf_t
/etc/cluster(/.*)?
  • cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
  • cluster_var_run_t
/run/crm(/.*)?
/run/cman_.*
/run/rsctmp(/.*)?
/run/aisexec.*
/run/heartbeat(/.*)?
/run/pcsd-ruby.socket
/run/corosync-qnetd(/.*)?
/run/corosync-qdevice(/.*)?
/run/pcsd.socket
/run/corosync.pid
/run/cpglockd.pid
/run/rgmanager.pid
/run/cluster/rgmanager.sk
  • krb5_host_rcache_t
/var/tmp/krb5_0.rcache2
/var/cache/krb5rcache(/.*)?
/var/tmp/nfs_0
/var/tmp/DNS_25
/var/tmp/host_0
/var/tmp/imap_0
/var/tmp/HTTP_23
/var/tmp/HTTP_48
/var/tmp/ldap_55
/var/tmp/ldap_487
/var/tmp/ldapmap1_0
  • lsmd_var_run_t
/run/lsm(/.*)?
  • root_t
/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp

📁 FILE CONTEXTS 📁

SELinux requires files to have an extended attribute to define the file type. yes, files have labels too, it's giving organized 💅

You can see the context of a file using the -Z option to ls 👀

Policy governs the access confined processes have to these files. The SELinux lsmd policy is very flexible, allowing users to setup their lsmd processes in as secure a method as possible 🔒

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the lsmd. If you wanted to store files with these types in different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk 🎀

semanage fcontext -a -t lsmd_exec_t '/srv/lsmd/content(/.*)?'
restorecon -R -v /srv/mylsmd_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🙈✨

The following file types are defined for lsmd:

  • lsmd_exec_t — set files with the lsmd_exec_t type if you want to transition an executable to the lsmd_t domain.
  • lsmd_plugin_exec_t — set files with the lsmd_plugin_exec_t type if you want to transition an executable to the lsmd_plugin_t domain.
  • lsmd_plugin_tmp_t — set files with the lsmd_plugin_tmp_t type if you want to store lsmd plugin temporary files in the /tmp directories.
  • lsmd_unit_file_t — set files with the lsmd_unit_file_t type if you want to treat the files as lsmd unit content.
  • lsmd_var_run_t — set files with the lsmd_var_run_t type if you want to store the lsmd files under the /run or /var/run directory.
Note: file context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. fr fr, chcon is giving temporary fix energy 💀

🛠️ COMMANDS 🛠️

  • semanage fcontext can also be used to manipulate default file context mappings.
  • semanage permissive can also be used to manipulate whether or not a process type is permissive.
  • semanage module can also be used to enable/disable/install/remove policy modules.
  • semanage port can also be used to manipulate the port definitions.
  • semanage boolean can also be used to manipulate the booleans.
  • system-config-selinux is a GUI tool available to customize SELinux policy settings. point-and-click icon behavior 🖱️✨

🖋️ AUTHOR 🖋️

This manual page was auto-generated using sepolicy manpage . (yes, a robot wrote it, and it ate 🤖💅)

🔗 SEE ALSO 🔗

selinux(8), lsmd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8), lsmd_plugin_selinux(8)

and that's the whole page bestie 🫶 go forth and label responsibly ✨

signing off for lsmd 🌸 — page date 26-10-06, and the manual page itself is lsmd_selinux(8) 💖 mwah, see u in the group chat 👑

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